With the 4" and 5" air filters there is a wider variance between the nominal and actual size depending on the manufacturer
Odorus gases and vapors (VOC) are attracted to and held by the activated carbon material while maintaining excellent air flow properties
Nordic Pure 18x25x1 MERV 8 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer
Nordic Pure 16x20x1 MERV 14 Plus Carbon air filters are made of electrostatically charged synthetic materials with an added flat panel infused with activated charcoal that attracts and capture most airborne particulates in your home
Each time air passes through a Nordic Pure carbon pleated furnace filter
19x35 5/8x1 MERV 7 Plus Carbon AC Furnace Filters Number Per Box:6 With the 4" and 5"Actual Size: 19 x 35 1 2 x 3 4 (19 x 35. 5 x 0. 75) Captures large airborne particles like lint, household dust, pollen, dust mites, mold spores and other contaminants. This dust reduction air filter is ideal in keeping your AC and furnace equipment working efficiently and helps reduce odors Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 7 is equivalent to MPR 600 Made in the USA. Nordic Pure